Fine titanium alloy wire is a broad concept, encompassing everything from millimeter-sized wires commonly used in industry to ultrafine wires used in precision manufacturing. According to current information, the smallest diameter currently mass-produced industrially has reached 0.05mm, while under laboratory conditions, even ultrafine wires of 0.046mm can be produced.
Common fine wire diameters typically range from 0.1mm to 6.0mm. These products are the most widely used and are mostly supplied in coil, loop, or straight wire form. Ultrafine/extremely fine wires generally refer to wires with a diameter less than 0.1mm. Currently, some domestic companies have successfully put into operation production lines for 0.05mm ultrafine titanium and titanium alloy wires, representing the current advanced level of industrial production.
Specification: What finer wire do you need? Is it the common 0.1mm or larger, or a special 0.05mm ultrafine wire? Material: For shapeability and corrosion resistance, pure titanium is an option; for strength, titanium alloys are an option. In high-end fields such as medical applications, specific standards such as ASTM F136 may also be required. The choice depends on whether the wire is wound on a spool (suitable for continuous processing) or is a fixed-length straight wire.
Titanium alloy wire has a wide range of applications, from precision medical devices to everyday consumer electronics and high-end aerospace equipment. Its lightweight, high strength, non-magnetic, skin-friendly, and durable properties meet the stringent material and aesthetic requirements of high-end electronic products. The emergence of ultra-fine wires (such as 0.05mm) has also provided new possibilities for minimally invasive surgery. Used in critical components where material weight reduction and reliability are extremely important, such as titanium alloy fasteners (known as "industrial rice"), it can significantly reduce aircraft weight and improve fuel efficiency. It enables integrated molding of complex structures with high material utilization, making it particularly suitable for small-batch, customized high-end manufacturing. Its superior performance in high temperature resistance, seawater corrosion resistance, and high strength makes it suitable for harsh industrial environments and marine conditions.
The production of titanium alloy wire is a complex process involving multiple processing techniques from raw material to finished product. The core lies in the gradual processing of the original titanium alloy ingot into fine wires of different diameters and performance requirements through a series of processes such as rolling, drawing, and heat treatment.
The ingot needs to be processed into a blank (wire blank) suitable for wire drawing, a process that typically requires hot working. Forging involves forging the ingot at high temperatures (such as the β phase region or the α+β two-phase region) to break up the as-cast structure and improve the material's plasticity. For difficult-to-deform alloys, homogenization treatment in a vacuum may be necessary. Rolling further reduces the diameter of the forged bar through die rolling. To improve efficiency and surface quality, modern production tends to use continuous high-speed rolling mills, rolling the bar into smaller diameter coils or straight wire blanks through multiple passes such as roughing, intermediate rolling, and finishing rolling. Temperature-controlled hot rolling can also refine the grains, preparing for subsequent processing. To thoroughly remove surface defects (such as microcracks and oxide scale) and obtain a bright and clean surface, the wire rod needs to undergo a peeling process on a centerless lathe.
